It’s generally more expensive to depart on a Thursday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.
Due to multiple factors, expect to potentially pay more when booking in July. For low rates, September can be a great choice for travel to Nagoya. Flights to Nagoya from Chicago in September are about $961 on average during September, but can be found for as low as $678.
When flying from Chicago to Nagoya, the time of day you fly usually plays a role in the price. Save by searching for a flight in the noon, which can drop the price by up to 25% versus a flight in the morning.